Results 91 to 100 of about 827 (204)
Impact of Pollution Location on Time and Frequency Characteristics of Leakage Current of Porcelain Insulator String under Different Humidity and Contamination Severity [PDF]
Journal of Operation and Automation in Power Engineering, 2007 One of the important factors influencing outdoor insulators performance is pollution phenomenon. The pollution, especially during humidity condition, reduces superficial resistance of insulator and lead to a flow of Leakage Currents (LC) on the insulator
M. Mirzaie, A. Azizi Tousi
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Resistance of High Tension Porcelain Insulators [PDF]
, 1928 High tension insulators are generally built of several porcelain discs in series, the discs being connected by galvanized steel hardware. When alternating voltage is impressed across such a string the voltage is not distributed symmetrically because the
Morgan, Stanley Chapin
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Energies, 2018 Accurate and timely detection of insulator flashover on power transmission lines is of paramount importance to power utilities. Most available solutions mainly focus on the exploitation of the flashover mechanism or the discharge area detection, rather ...
Yongjie Zhai +4 more
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Effect of alumina addition on physical and structural properties of ceramic porcelain
, 2020 Porcelain usually made up from kaolin, feldspar, silica and alumina have a properties as an electrical insulator. The high amount of kaolin addition into the porcelain sample may cause the reduction of sample strength.
Ya’akob, Nur Hidayah
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, 2011 This paper presents the effect of over-voltage damage on contamination surface of porcelain insulator due to impulse high voltage connects in series with high voltage alternating current (HVAC) which studied by using rotating wheel dip test.
Arkom Kaewrawang +3 more
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Iranian Journal of Electrical and Electronic Engineering, 2013 Insulator strings with several material and profiles are very common in overhead transmission lines. However, the electric field and voltage distribution of insulator string is uneven which may easily lead to corona, insulators’ surface deterioration and
E. Akbari +3 more
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Porcelain and other Ceramic Insulating Materials [PDF]
Nature, 1944 THE pottery industry is almost virgin territory for the worker in applied science. Despite the trails blazed by J. W. Mellor in Great Britain and H. Seger in Germany, there are still wide tracts quite unexplored. There is still no institution of university status in Great Britain offering a full-time course in ceramics, and the number of qualified ...
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Size Distribution of Contamination Particulate on Porcelain Insulators
, 2018 The characteristics of contamination on the insulation medium surface play an important role in the surface flashover, especially size distribution of contaminated particles.
Rumeng Wang +3 more
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Study on Leakage Current Waveforms of Porcelain Insulator due to Various Artificial
, 2008 —This paper presents the experimental results of leakage current waveforms which appears on porcelain insulator surface due to existence of artificial pollutants. The tests have been done using the chemical compounds of NaCl, Na2SiO3, H2SO4, CaO, Na2SO4,
Maman A. Djauhari, Parouli M. Pakpahan
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Simulation of potential and electric field across faulty ceramic disc insulator string
, 2013 Ceramic/Porcelain insulators are widely used in power transmission lines to provide mechanical support for High voltage conductors in addition to withstand electrical stresses.
Reddy, Subba B, Naik, Satish B
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